GB/T 39952-2021 in English

VALID

Titanium dioxide-based dispersion for photocatalysis

Issued on:2021-04-30
Implemented on:2021-11-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $140.00
$136.00

Standard No:	GB/T 39952-2021
Document status:	VALID
Title in English:	Titanium dioxide-based dispersion for photocatalysis
Title in Chinese:	二氧化钛基光催化分散液
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2021-04-30
Implemented on:	2021-11-01
ICS Classification:	87.040-Paints and varnishes
Chinese Classification:	G52-Coating auxiliary materials
Professional Classification:	GB-National Standard
Related Keywords:	titanium content dioxide-based dispersion dioxide-based photocatalytic dispersions type visible light type differences visible light type
Related Topics:	Photocatalytic Titanium oxide Titanium dioxide photocatalytic oxidation Photocatalysis is somewhat photocatalytic oxidation Semiconductor Photocatalytic Oxidation Semiconductor Photocatalytic Oxidation Photocatalytic ability Photocatalytic ability Special Titanium Dioxide Photocatalyst Photocatalytic Oxidation Performance Titanium dioxide d Why Photocatalytic Oxidation Why Photocatalytic Light Sources photocatalytic cocatalysis photocatalytic light source photocatalytic photooxidative photocatalysis Titanium dioxide fluorescence Production of Photosensitive Titanium Dioxide General photocatalysis photocatalytic night How photocatalytic Cobalt Photocatalytic Oxidation Photocatalytic oxidation test Foreign titanium silicon catalyst Photocatalysis and Semiconductor Photocatalysis catalytic voc photocatalytic voc voc photocatalysis voc+photocatalysis voc catalysis voc++ catalytic voc catalytic voc photocatalytic method voc photocatalysis photocatalytic voc Catalytic VOC voc catalytic voc+catalysis voc catalyst photocatalyst oxygen High quality photocatalysis Titanium dioxide characteristic peak Broad Spectrum Photocatalysis solid photocatalysis Photocatalytic Titanium dioxide gold tin dioxide spectrophotometry 1. Semiconductor Photocatalytic Oxidation Physical and chemical properties of titanium dioxide tin dioxide spectrometry Lithium oxide catalyst Titanium dioxide particles Semiconductor Photocatalytic Oxidation silver catalyst photocatalytic light source photocatalytic technology New photocatalysis Sulfur dioxide spectrophotometry What light is used for photocatalysis Titanium dioxide curve Titanium dioxide characteristic peak How to detect photocatalysis Matrix liquefaction dispersion Broad Spectrum Photocatalysis photocatalytic methylation Titanium dioxide curve carbon dioxide catalysis Catalysis of carbon dioxide Al-Ti Ratio Catalyst Photocatalytic Oxidation of Semiconductors Titanium dioxide voltammetry curve Titanium dioxide voltammetry curve Catalyst Al-Ti Ratio Dispersions Titanium dioxide p2 Molybdenum ditelluride photocatalysis photocatalytic degradation Photocatalytic molybdenum ditelluride Efficient photocatalysis photocatalytic degradation electrocatalysis liquid phase oxidation photocatalytic technology The role of titanium dioxide base catalyst Titanium dioxide peak Titanium dioxide characteristics titanium dioxide atom Vanadium titanium catalyst titanyl oxide Titanium dioxide p2 oxidative photocatalysis Photosensitive titanium dioxide photocatalytic oxygen removal Titanium dioxide + p2 Guanidine catalyst photocatalytic enzyme bio-oil photocatalysis photocatalytic automatic Titanium Oxidation Temperature photocatalytic photooxidation Titanium Spectrum Calcined Titanium Dioxide Titanium trioxide manganese dioxide CO2 catalytic converter Titanium uranium dioxide microspheres Photocatalytic bar Titanium dioxide+ Lao catalytic oxidation Palladium Oxide Photocatalysis UV titanium dioxide photocatalytic effect Titanium Chemical Oxidation GBT39952 GB/T 39952-2021 Frontiers of Photocatalytic Dyes Titanium dihydride catalytic oxidation catalyst Optical Device Photocatalysis Titanium dioxide photocurrent Titanium dioxide absorption spectrum Photocatalytic mechanism heterogeneous catalytic oxidation Biomass photocatalysis fda titanium dioxide Titanium dioxide acidity and alkalinity Ionic liquid photocatalysis Silica emulsion infrared spectrum Titanium dioxide air purification Photolysis of sulfur dioxide Synergistic catalysis of light and nickel Titanium catalyst Highly dispersible silica national standard Chemical fiber grade titanium dioxide Electrocatalysis industry catalytic oxidation country Titanium dioxide catalyst material Titanium dioxide standard curve Titanium Dioxide International Titanium dioxide molding method Titanium Dioxide Digestion Method Spent catalyst testing titanium Titanium dioxide standard peak Catalytic titanium dioxide Chloride titanium dioxide Titanium dioxide synthesis method Preparation method of titanium dioxide gb/t 39952

《GB/T 39952-2021二氧化钛基光催化分散液》由TC194（全国工业陶瓷标准化技术委员会）归口，主管部门为中国建筑材料联合会。

Introduction

Analysis of the core content of the standard

GB/T 39952-2021 established the national standard system for titanium dioxide-based photocatalytic dispersions for the first time, standardizing the technical requirements for the entire process from raw material control to performance verification. The standard innovatively uses phenol degradation rate as the core evaluation indicator of photocatalytic activity.

Comparison of key technical indicators

Test items	Ultraviolet light type	Visible light type	Differences in test methods
Phenol degradation rate	2h＞60%	6h＞20%	Different light source wavelength/reaction time
Effective solid content	≥90% of nominal value		Uniform ignition loss method
Stability requirements	No stratification within 24h		Visual detection method

Photocatalytic activity test specifications

The standard clearly requires the use of HPLC method to determine the phenol degradation rate. The chromatographic conditions are: C18 chromatographic column (4.6mm×250mm), mobile phase water: methanol = 40:60, and detection wavelength 280nm. Notes during testing:

Ultraviolet type uses 254nm/365nm light source, light intensity 2.0mW/cm²
Visible light type requires 420nm cut-off filter, illumination 2500lx
Reaction temperature is strictly controlled at 23±2℃

Implementation and application suggestions

Based on the experience of standard implementation:

Production control focus: Batch stability of titanium content and pH value
Transportation and storage key: Avoid freezing and exposure, 5-30℃ environment is recommended
24h stability retest must be carried out before use

Technology evolution analysis

Compared with Japan's JIS R 1703-2012 photocatalyst test standard:

Innovatively introduced the visible light responsive product category
Simplified the complex process of acetaldehyde degradation testing
Added quantitative indicators for storage stability

More samples: GB 18306-2015 NB/T 47013.2-2015 DL/T 368-2010

Sample only — not a preview of GB/T 39952-2021

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